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11 Aligning the Infrared Safety Beam
The safety beam has two components, a sender and a receiver. The sender produces a narrow infrared beam that
travels across the bottom of the door opening to the infrared receiver. If an object blocks the infrared beam while the
door is closing, the door will stop, then reverse and fully open (the operator’s light will flash three times).
As a safety feature, the operator will ignore signals from all remote controls if the door is open and the
infrared safety beam is blocked or out of alignment. In this case, the door can be forced closed by pressing
and holding the wall station’s up/down arrow pushbutton (be sure the door area is in clear view).
Safety Beam Test
1 Check that the operator has power. The green lights on
the sender and receiver should be lit.
2 If the receiver’s green light is on, but the red light is off,
the receiver has power but is not detecting the infrared
beam from the sender. The red light might flash when
the beam is partially detected. This can be caused
by mis-alignment or something blocking the beam.
Adjust the safety beam sender and receiver while
watching the receiver’s red light (stay out of the beam
while aligning it). When the red light stays on, rotate the
sender towards the ceiling and stop when the red light
on the receiver begins to flicker. Rotate the sender back
towards a horizontal position with the floor and stop as
soon as the red light on the receiver lights solid. The
beam is now properly aligned.
SAFETY BEAM INDICATOR TABLE
GREEN ON POWER ON
GREEN OFF POWER OFF
RED ON BEAM OK - NO BLOCKAGE
RED OFF BEAM BLOCKED OR MIS-ALIGNED
RED FLASHING BEAM ALIGNED POORLY
� NOTE: If the receiver’s red light remains off, check
for: 1) Dirt on the receiver’s lens, 2) Sunlight shining
into the receiver’s lens, 3) A short in the safety beam
wiring (from staples or at the operator terminals).
3 With the door closed and the operator disengaged
from the door, press the wall station’s UP/DOWN
ARROW button to move the traveler (the part on the
belt or chain that the trolley engages with) to the up
position (away from the door).
4 Push the wall station’s UP/DOWN ARROW button again.
While the traveler is moving to the down position (toward
the door), block the safety beam. THE TRAVELER MUST
STOP, THEN REVERSE TO THE UP POSITION. The
operator’s light and red light should flash three times.
5 Place an object in the path of the safety beam. Check
that constant pressure is required on the wall station’s
UP/DOWN ARROW button to cause the traveler
to move toward the down position. Release the
pushbutton before the operator stops; check that the
traveler returns to the up position.
� NOTE: The garage door operator will not respond
to a CLOSE command from a radio transmitter if the
safety beam is blocked.
6 To reconnect the operator, flip the release lever up.
Raise the door manually until the operator reconnects.
12 Remote Controls
The operator is supplied with a three-button remote control (the second and third buttons can be used to control an
additional operator or gate if it contains a Linear MegaCode™ receiver). Additional single and multi-button remote
controls can be purchased. The short wire on the back of the operator serves as an antenna for the remote controls. Do
not cut off the wire or the remote controls will not operate well.
To Add or Remove a Remote Control
1 Press the operator’s LEARN button. The operator’s light
and red light will flash once and turn on for about 15
seconds. A remote must be added or removed while
the red light is still on.
2 Send a signal from a remote. The operator’s light and
the red light will flash once if a remote was added, or
the opener’s light and the red light will flash four times
if a remote was removed.
3 Repeat Steps 1 & 2 for any additional remote controls.
To Remove All Remote Controls
1 Press and hold the operator’s LEARN button for ten
seconds or more.
2 Release the LEARN button. The red light and
operator’s light will blink three times signaling that
all of the remotes in the operator’s memory were
erased. The red light will turn off, then turn on for 15
seconds. A remote control can be entered during this
time using the steps above.
Testing
1 Before testing the remote control, straighten out the
operator’s antenna wire so it points up.
2 Stand clear of the door, press the remote control’s
button and verify that the operator starts. PRESS THE
REMOTE CONTROL’S BUTTON AGAIN TO STOP
THE DOOR MID-TRAVEL.
Replacing a Remote Control’s Batteries
When the red light on the remote glows dimly, or fails to light at
all when the remote is activated, the batteries need replacing.
1 Open the remote’s case and remove the circuit board.
2 Replace old batteries with two Type 2032 batteries.
3 Re-assemble the remote.
13 Adjusting the Open and Close Limits
The limit settings control how far the door will open and close. Set the limits so the door opens just short of any door
stops, and closes at the floor level. Out of the box, the operator is preset on its close limit and the open limit
is preset for a 7-foot high door.
Use the wall station or a transmitter to test operate the
door. If required, use the following steps to adjust the
limits.
Adjusting the Open Limit
1 Use the wall station or a transmitter to move the door
to the open limit position.
2 Press both the UP and LEARN buttons for three
seconds. The green indicator and operator’s light will
flash twice then stay on.
3 If necessary, use the UP and DOWN buttons to jog the
door at slow speed to fine-tune the open limit position.
4 When the door is at the proper open limit position,
press the LEARN button to store the setting and exit
setup. The green indicator and the operator’s light will
flash two times.
Adjusting the Close Limit
1 Use the wall station or a transmitter to move the door
to the close limit position.
2 Press both the DOWN and LEARN buttons for three
seconds. The red indicator and operator’s light will
flash twice then stay on.
3 If necessary, use the UP and DOWN buttons to jog the
door at slow speed to fine-tune the close limit position.
4 When the door is at the proper close limit position,
press the LEARN button to store the setting and exit
setup. The red indicator and the operator’s light will
flash two times.
14 Automatic Door Force Setup
The operator automatically measures the door force throughout the entire travel of the door each time the operator
cycles. The following steps are all that’s required to setup the safety reversal system.
Automatic Door Force Setup
1 Be sure that the trolley latch is up and the door is
connected to the operator.
2 Operate the door through four complete open and
close cycles.
15 Safety Reversal System Test
The operator determines that there is an obstruction if a higher than expected amount of force is detected during a
door cycle. If an obstruction is encountered during a closing cycle, the operator and door will stop then fully open. If
an obstruction is encountered during an opening cycle, the operator and door will stop.
Safety Reversal System Test
1 Lay a 2 x 4 board flat on the floor where it will be struck
by the center of the door as it closes.
2 Verify that the door reverses when it strikes the board.
The door must reverse within two seconds after
striking the board.
16 Adjusting the Force Factor (Installation Option, Normally Not Used)
The operator uses the peak force measured during each of the last four complete cycles plus a “force factor” to
calculate the maximum allowed force setting for the current door cycle. If the calculated maximum force setting is
exceeded during the current door cycle, the operator reacts to the obstruction. As door hardware conditions change
over time with weather and wear, the calculation of the maximum door force setting using the four cycle running
average will compensate for the current conditions of the installation.
The door force is preset for the lowest amount of pressure on an obstacle to detect an obstruction. THE
FACTORY SETTING IS OPTIMIZED FOR MOST INSTALLATIONS.
Changing the Force Factor Setting
As an installation option, the operator’s “force factor” can
be adjusted to change the amount of pressure exerted on
an obstacle before the operator reacts to the obstruction.
1 Press both the UP and DOWN buttons for three
seconds. The red and green indicators and operator’s
light will flash twice.
2 Use the UP or DOWN buttons to set the force factor.
Pressing the UP button increases the force factor,
pressing the DOWN button decreases the force factor.
FORCE FACTOR INDICATOR TABLE
GREEN ON LOW FORCE FACTOR
RED & GREEN ON MEDIUM FORCE FACTOR
RED ON HIGH FORCE FACTOR
3 After selecting the force factor, press the LEARN
button to store the setting and exit setup. The red and
green indicators and the operator’s light will flash two
times. (If the force factor is not set within one minute,
the operator will return to normal operation at its
previous force factor setting.)
4 After changing the force factor setting, perform the
Safety System Reversal Test.
IF PROPERLY
BALANCED, THE
DOOR WILL STAY AT A
HALFWAY POSITION
IF PROPERLY
BALANCED, THE
DOOR WILL STAY AT A
HALFWAY POSITION
PRINTER’S INSTRUCTIONS:
INSTR,INSTL,LDCO; LINEAR P/N: 228355 C; INK: BLACK; MATERIAL: 20# MEAD BOND; SIZE: 17.000” x 22.000”; FOLDING: 2-FOLDS VERTICAL, 1-FOLD HORIZONTAL, FINISH 8.500” X 5.500” WITH LOGO SHOWING; SCALE: 1-1; SIDE 2 OF 2
17 Using the Garage Door Operator
Opening the Door
1 With the door in view, press the wall station’s UP/
DOWN ARROW button or the button assigned to the
operator on the remote control, or enter a valid access
code and press START/STOP on a remote keypad.
2 When the operator is activated, the operator’s light will
turn on and the door will begin to open.
3 The door will open until the open limit is reached. If an
obstacle is encountered (operator’s light flashes four
times) while the door is opening, the door will stop.
4 The operator’s light will stay on for about five minutes
after the door stops.
Closing the Door
1 With the door in view, press the wall station’s UP/
DOWN ARROW button or the button assigned to the
operator on the remote control, or enter a valid access
code and press START/STOP on a remote keypad.
2 When the operator is activated, the operator’s light will
turn on and the door will begin to close.
3 The door will close until the close limit is reached. If an
obstacle is encountered (operator’s light flashes four
times), or the safety beam is interrupted (operator’s
light flashes three times) during closing, the door will
stop, then re-open.
4 The operator’s light will stay on for about five minutes
after the door stops.
Stopping the Door Mid-travel
1 The door can be stopped immediately at any time
by pressing the wall station’s UP/DOWN ARROW
button, the remote control’s pushbutton, or press
the START/STOP button on a remote keypad (if the
remote keypad was used to start the door).
2 The next time the operator is activated, the door will
move in the opposite direction.
Vacation Lock for Additional Security
1 Slide the wall station’s LOCK switch to the locked
position to prevent remote controls from opening the
door after the door is completely closed. The remotes
can close the door, but not open it. The door can still
be opened or closed by using the wall station’s UP/
DOWN ARROW pushbutton.
� NOTE: To signal that the vacation switch is locked,
the operator’s light and red light will flash five times if a
remote is activated in an attempt to open the door.
2 Slide the wall station’s LOCK switch to the unlocked
position to return the operator to normal operation.
Controlling the Operator’s Light
1 The operator’s light can be lit by pushing the wall
station’s LIGHT button. The light will remain on until
the LIGHT button is pressed again or the operator is
cycled.
2 If the operator’s light is on, pushing the wall station’s
LIGHT button will turn the operator’s light off.
Disconnecting the Door from the Operator
1 With the door in any position (preferably closed),
carefully pull the red release handle. USE CAUTION
IF THE DOOR IS OPEN, THE DOOR MAY DROP.
2 The disconnected door can be opened or closed
manually.
3 To re-connect the operator, flip the release lever up.
Raise or lower the door manually until the operator
reconnects.
18 Garage Door Operator Maintenance
Weather conditions may affect the door operation which could require some re-setting of the operator’s adjustments.
Doors may swell and become heavier during wet periods, door hinges and rollers might bind during cold periods. To
insure safe operation of the door, perform the following tests, including any additional test steps described.
Every Month
1 With the door closed, pull the red release handle to
disconnect the operator from the door.
2 From outside the garage, slowly open the door
manually all the way, and then close it all the way.
Notice if there is any binding, sticking or rubbing. The
door should move smoothly in both directions.
3 Raise the garage door about halfway up. Carefully
release the door and see if the door balances. It should
stay in place. Close the door.
� NOTE: If the garage door is unbalanced or the
door travel isn’t smooth, have a qualified garage door
professional adjust or repair the door.
4 To reconnect the operator, flip the release lever up and
run the operator.
5 Perform the Safety Beam Test (Section 11).
6 Perform the Safety Reversal System Test as described
in Section 15.
After Servicing the Operator
1 Perform the Safety Beam Test (Section 11).
2 Perform the Open and Close Limit Adjustments
(Section 13).
3 Perform the Safety Reversal System Test (Section 15).
Every 6 Months
Check the belt or chain tension.
• For belt-drive rails, examine the length of the tension
spring in the traveler. It should be about 1” long.
• For chain-drive rails, examine the spacing between
the turnbuckle and the rail. The turnbuckle should be
slightly above the rail.
� NOTE: Too much or too little chain tension will cause
excessive sprocket noise.
Chain Adjustment
If necessary, use the following steps to adjust the chain.
1 Hold the turnbuckle with a flat blade screwdriver and
loosen the two locknuts with a 7/16” end wrench.
2 Twist the turnbuckle to adjust the chain tension. Adjust
the chain until the turnbuckle is sightly above the rail.
3 Hold the turnbuckle with a flat blade screwdriver and
tighten the two locknuts with a 7/16” end wrench.
Belt Adjustment
The tension spring in the traveler keeps the belt taut. The
factory setting for the tension spring length is .9” long. If
the tension spring is longer than 1”, adjust the belt.
1 Hold the traveler so the adjustment wheel is visible
through the large slot.
2 Use a flat blade screwdriver to turn the adjustment
wheel to compress the tension spring until its length is
between .9” and 1” long.
Every Year
Check the door hardware for lubrication needs. Lubricate
door hinges, rollers and bearings according to door
manufacturer’s recommended procedures.
19 Field Reset
20 Troubleshooting
LAMP FLASHES
TROUBLE CODE
PROBLEM CAUSE REMEDY
1 FLASH No problem
Remote control entered into
memory
Add any additional remote controls
(MegaCode™ type only)
2 FLASHES Door won’t close Shorted wall station wires
Check wall station wires. Be sure both are
connected to the terminal screws. Check for
a staple in the wall station wires. Remove
any staples compressing the wire.
3 FLASHES Door won’t close Safety beam obstacle
Check for obstacles. Align the safety beam
(Section 11)
4 FLASHES
Door reverses
or won’t open or
close
Open or Close force exceeded
Check for obstruction or binding of garage
door. Perform field reset (Section 19) if
necessary.
5 FLASHES
Door won’t open
from transmitter
Remote was activated while
vacation switch was locked
Unlock vacation switch on wall station
6 FLASHES
Motor ran longer
than 30 seconds
Mechanical or electronic failure Call Technical Services Group for assistance
7 FLASHES Limit error
Encoder has detected error or
down limit set above up limit.
Re-set the open and close limits. If error
occurs again, call Technical Services Group.
FCC NOTICE
Changes or modifications not expressly described in this manual or approved by the manufacturer could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Industry Canada and Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
LIMITED WARRANTY
This Linear product is warranted to the original consumer against defects in material and workmanship for:
MODEL ELECTRONICS MECHANICAL MOTOR BELT CHAIN
LDCO800 1 year 5 years Lifetime Lifetime 5 years
This product is warranted to the original consumer against defects in material and workmanship for the periods mentioned above. Linear will repair, or at its option, replace,
any device that it finds requires service under this warranty, and will return the repaired or replaced device to the consumer at Linear’s cost. Devices must be sent to Linear for
service at owner’s expense. This warranty does not apply to damage to the product from negligence, abuse, abnormal usage, misuse, accidents, normal wear or tear or due to
failure to follow Seller’s instructions, or arising from improper installation, storage or maintenance. In no event will Linear be responsible for incidental, compensatory, punitive,
consequential, indirect, special or other damages. The remedies provided by this warranty are exclusive. Some states do not allow the exclusion or limitation of incidental and
consequential damages, so the above limitation or exclusion may not apply to you. Any warranties implied by law are limited to the time periods set forth above. Some states
do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
For warranty service and shipping instructions contact Linear at the phone number shown below. In order to be protected by this warranty, save your proof of purchase and send
a copy with equipment should repair be required. All products returned for warranty service require a Return Product Authorization Number (RPA#). Contact Linear Technical
Services at 1-800-421-1587 for an RPA# and other important details.
WARNING
Children operating or playing with a garage
door operator can injure themselves or others.
The garage door could cause serious injury or
death. Do not allow children to operate the
remote control(s) or the wall station. A moving
garage door could injure or kill someone under
it. Activate the operator only when the door is
clearly visible, free of obstructions and adjusted
properly.
Copyright © 2010 Linear LLC 228355 C
IMPORTANT USER SAFETY INSTRUCTIONS
WARNING
A MOVING GARAGE DOOR CAN CAUSE INJURY OR DEATH!
TO REDUCE THE RISK OF DEATH OR SEVERE INJURY:
1 READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS.
2 NEVER LET CHILDREN OPERATE, OR PLAY WITH DOOR CONTROLS! KEEP REMOTE CONTROL
AWAY FROM CHILDREN!
3 Always keep moving door in sight and away from people and objects until it is completely closed.
NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
4 NEVER GO UNDER A STOPPED, PARTIALLY OPEN DOOR.
5 Test door operator monthly. The garage door MUST reverse on contact with a 1-1/2 inch object (or a 2x4
board laid flat at the center of the door) on the floor. If adjusting either the force or the limit of travel,
re-test the door operator. Failure to adjust the operator properly may cause severe injury or death.
6 If possible, use the red emergency release handle only when the door is closed. Use caution when
using this release with the door open. Weak or broken springs may cause the door to fall rapidly,
causing injury or death.
7 KEEP GARAGE DOORS PROPERLY BALANCED. (See Garage Door Operator Maintenance) An
improperly balanced door could cause severe injury or death. Have a qualified service person make
repairs to cables, spring assembly and other hardware.
8
SAVE THESE INSTRUCTIONS.
SEND A SIGNAL
FROM A REMOTE
THE OPERATOR'S LIGHT AND
RED LIGHT WILL FLASH ONCE IF A
REMOTE IS ADDED, THE OPERATOR'S
LIGHT AND THE RED LIGHT
WILL FLASH FOUR TIMES
IF A REMOTE IS REMOVED
1
2
ADDING OR REMOVING A REMOTE
PRESS A
BUTTON
- OR -
ENTER A CODE
AND PRESS START/STOP
PRESS THE LEARN BUTTON
FOR 10 SECONDS OR MORE
1
2
REMOVING ALL REMOTES
THE RED LIGH
AND OPERATOR’S LIGH
T
T
WILL BLINK 3 TIMES
SIGNALING THAT
ALL REMOTES
WERE REMOVED
TEST WITH SMALL OBSTACLE
THE DOOR MUST REVERSE
WITHIN 2-SECONDS AFTER
IMPACT WITH A 2 x 4 BOARD
2 x 4 BOARD LAID FLAT
UNDER
CENTER OF DOOR
TESTING THE SAFETY REVERSAL SYSTEM
PRESS THE
LEARN BUTTON
REMOTE MUST BE ENTERED
WHILE RED LIGHT IS ON
2
PREPARING TO ADD OR REMOVE A REMOTE
1
THE RED LIGHT WILL
GLOW FOR 15 SECONDS
SAFETY BEAM INDICATORS
RED LIGHT
GREEN LIGHT
GREEN LIGHT
ON = POWER ON
OFF = POWER OFF
RED LIGHT
ON = BEAM ALIGNED, NO OBSTRUCTION
OFF = BEAM NOT ALIGNED, OR OBSTRUCTION
BLINKING = BEAM NEEDS BETTER ALIGNMENT
ADJUSTING THE BEAM
1. ADJUST THE SENDER
AND RECEIVER UNTIL
THE RED INDICATOR
LIGHTS SOLID
2. ADJUST SENDER
UP UNTIL RECEIVER'S
RED INDICATOR FLASHES
3. ADJUST SENDER DOWN
JUST UNTIL RECEIVER'S
RED INDICATOR LIGHTS SOLID
BLOCK THE BEAM
WHILE THE TRAVELER
IS MOVING DOWN
TOWARD
DOOR
TOWARD
OPERATOR
UP
DOWN
CHECKING FOR REVERSAL
TRAVELER
THE TRAVELER MUST REVERSE
WHEN THE BEAM IS INTERRUPTED
PLACE AN OBJECT
IN THE BEAM'S PATH
VERIFY THAT CONSTANT
PRESSURE IS REQUIRED
ON THE WALL STATION'S
PUSHBUTTON TO MAKE
THE TRAVELER GO DOWN
RELEASE PUSHBUTTON
BEFORE THE OPERATOR STOPS,
THE TRAVELER SHOULD
RETURN TO THE UP POSITION
CHECKING FORCED CLOSURE FEATURE
WARNING
With the door closed, disengage the trolley from
the chain or belt during these alignment tests by
pulling the red release handle.
WARNING
Serious injury or death from a closing garage
door may result because of failure to test and
adjust safety reverse system. Repeat this test
monthly and adjust as needed.
WARNING
The garage door operator must not be
installed and used on an unbalanced door. The
operator’s internal door force sensor will not
function properly on an unbalanced door. Risk
of serious injury or death may result.
WARNING
Garage door hardware (springs, cables,
brackets, pulleys, etc.) are under extreme
pressure and tension. DO NOT ATTEMPT TO
LOOSEN, TIGHTEN OR ADJUST ANY DOOR
HARDWARE. CALL A QUALIFIED GARAGE DOOR
INSTALLATION PROFESSIONAL!
WARNING
Always perform the Safety Reversal System
Test (see Section 15) after making any
adjustments to the operator.
1
TWIST DIME IN
SLOT TO OPEN
CASE
2
LIFT OFF
THE TOP OF
THE CASE
3
CAREFULLY
REMOVE THE
CIRCUIT BOARD
5
INSERT TWO NEW
TYPE 2032 BATTERIES
PLUS SIDE UP THEN
REASSEMBLE UNIT
NOTE:
THE CIRCUIT BOARD WILL FIT ONLY ONE
WAY INTO THE CASE. ALIGN THE PLASTIC POST
IN THE CASE WITH THE HOLE IN THE CIRCUIT BOARD
REPLACING A REMOTE'S BATTERY
4
REMOVE OLD
BATTERIES AND
DISPOSE OF THEM PROPERLY
OPERATE THE DOOR THROUGH
FOUR
FULL OPEN AND CLOSE CYCLES
DOOR FORCE SETUP
4
4
PRESS THE
WALL STATION'S
UP/DOWN ARROW
PRESS A REMOTE
CONTROL BUTTON
OPENING OR CLOSING THE DOOR
- OR -
- OR -
ENTER AN
ACCESS CODE
AND PRESS
START/STOP
WALL STATION REMOTE CONTROL
REMOTE
KEYPAD
WHENEVER OPERATING
THE LIGHT WILL TURN ON
FOR ABOUT 5 MINUTES
NOTE: A FLASHING
LIGHT INDICATES
TROUBLE
SAFETY LIGHTING
WALL
STATION
REMOTE
KEYPAD
REMOTE
CONTROL
THE DOOR CAN BE STOPPED
AT ANY POSITION USING THE
WALL STATION, REMOTE CONTROL,
OR A REMOTE KEYPAD
STOPPING THE DOOR
LOCK UNLOCK
PREVENTING REMOTES
FROM OPENING THE DOOR
SLIDE THE VACATION SWITCH
DOWN TO LOCK (REMOTES DISABLED)
OR UP TO UNLOCK (REMOTES NORMAL)
CONTROLLING THE
OPERATOR'S LIGHT
PRESS THE LIGHT
BUTTON TO TURN THE
LIGHT ON OR OFF
THE LIGHT WILL STAY ON UNTIL
THE LIGHT BUTTON IS PRESSED
OR THE OPERATOR IS CYCLED
IF DOOR BECOMES OBSTRUCTED,
PULL DOWN ON HANDLE
NOTICE
IF DOOR BECOMES OBSTRUCTED,
PULL DOWN ON HANDLE
NOTICE
IN CASE OF POWER FAILURE
OR IF DOOR BECOMES OBSTRUCTED
PULL THE RED
RELEASE HANDLE
TO DISCONNECT
THE OPERATOR
FROM THE
DOOR
FLIP THE LEVER UP
AND RAISE OR
LOWER THE DOOR
TO RECONNECT
THE OPERATOR
TURNBUCKLE
LOCKNUTS
TO HEAD
LOCKNUTS
TIGHTEN
LOCKNUTS
LOOSEN
HOLD TURNBUCKLE
WITH FLAT BLADE
SCREWDRIVER TO
BACKUP LOCKNUTS
TWIST
TURNBUCKLE
CHAIN
TIGHTEN
CHAIN
LOOSEN
ADJUSTING A CHAIN-DRIVE
ADJUSTING A BELT-DRIVE
TIGHTEN
LOOSEN
TURN THE ADJUSTMENT
WHEEL UNTIL THE TENSION
SPRING IS ABOUT 1" LONG
ADJUSTMENT WHEEL
MEASURE THE TENSION
SPRING LENGTH
TRAVELER
IF DOOR BECOMES OBSTRUCTED,
PULL DOWN ON HANDLE
NOTICE
IF DOOR BECOMES OBSTRUCTED,
PULL DOWN ON HANDLE
NOTICE
TO DISCONNECT OPERATOR
PULL THE RED
RELEASE HANDLE
TO DISCONNECT
THE OPERATOR
FROM THE
DOOR
FLIP THE LEVER UP
AND RAISE OR
LOWER THE DOOR
TO RECONNECT
THE OPERATOR
TO RECONNECT OPERATOR
WARNING
Always perform the Safety Reversal System Test
after making any adjustments to the operator.
PERFORM THE SAFETY REVERSAL SYSTEM TEST
MONTHLY!
CAUTION
Set the open and close limits carefully. Setting
the limits beyond the distance that the door
can travel could cause damage to the door, the
door hardware, or operator.
CAUTION
Do not cycle the operator full travel without
the door connected. The automatic door force
setting will adjust to the unloaded condition
and may trip the safety system when the door
is reconnected.
DOWN
UP
EXAMINE THE SPOT WHERE
DOOR CLOSES
ADJUSTING THE CLOSE LIMIT
DOWN
UP
EXAMINE THE SPOT WHERE
THE DOOR OPENS
ADJUSTING THE OPEN LIMIT
In installations where the door spring, door, or hardware
is being replaced, and the operator was already
programmed for the old door, reset the operator’s
settings using the following steps.
1 Press and hold down the UP, DOWN, and LEARN
buttons at the same time for ten seconds. The red
and green indicators and the operator’s light will flash
twice.
2 Release the buttons. The operator will reset force
settings and erase all set limits, but will still retain
all programmed transmitters in memory.
3 AFTER PERFORMING A FIELD RESET, BOTH THE
OPEN AND CLOSE LIMITS MUST BE ADJUSTED
AND THE AUTOMATIC DOOR FORCE SETUP
COMPLETED BEFORE THE OPENER WILL
FUNCTION.